output reg [7:0] out , // Output of the counter input wire up_down , // up_down control for counter input wire clk , // clock input input wire reset // reset input ); //---Code Starts Here--- always_ff @(posedge clk) if (reset) begin // active high reset out <= 8'b0...
'bz: DIN ;//'bz,高阻态//input:(PAD->DOUT)always@(*)beginif(OEN ==1)begin//inputDOUT = PAD ;endelsebeginDOUT ='bz;endend//use tristate gate in Verilog to realize pull up/down functionbufif1puller(PAD, PULL[0], PULL[1]);//PULL = 2'b10:启用下拉,PAD被拉低到GND。//PULL =...
// 4-bit counter to make clock divider reg [3:0] count1; // 4-bit counter to...
_clk or negedge sys_rst_n) begin 28 if (sys_rst_n == 1'b0) 29 counter <= 1'b0; 30 elseif (counter_en) 31 counter <= 1'b0; 32 else 33 counter <= counter + 1'b1; 34 end 一.4.5 什么是latch latch是指锁存器,是一种对脉冲电平敏感的存储单元电路。锁存器和寄存器都是基本...
Verilog program for 8bit Up down counter Verilog program for 8bit Shift Register (SIPO,PISO,PIPO) Verilog program for Random Access Memory(RAM) Verilog program for Programmable clock Generator Verilog program for Finite State Machine (mealy) ...
library IEEE; use IEEE.std_logic_1164.all; use IEEE.numeric_std.all; entity posnegcounter is generic( WIDTH_COUNT : natural := 8 ); port( Clk : in std_logic; Reset : in std_logic; Counter : out std_logic_vector(WIDTH_COUNT - 1 downto 0) ); end entity...
Example:importhdl('fifo.v',Language="Verilog")imports the Verilog filefifo.vand generates the corresponding Simulink modelfifo.slx. Top-level module name in the HDL code, specified as a character vector. This name becomes the name of the top-levelSubsystemfrom which HDL import constructs the hi...
q(7 downto 1)<= q(2 downto 0); q(0)<= input_d; end if; end process; end arch; 27、使用 D 触发器的异步计数器的 VHDL 代码 //*following is the VHDl code for a asynchoronous counter designed with d flip flop *// library ieee; ...
145.4-bit shift register and down counter 题目: This is the first component in a series of five exercises that builds a complex counter out of several smaller circuits. See the final exercisefor the overall design. Build a four-bit shift register that also acts as a down counter. Data is...
I am trying to read and write 8-bit Counter data Using Quartus and NIOS. In SOPC : I am assigning PIO : 1-bit input for enable PIO : 8-bit output for outmodule Counter_Top_Level_design ( input clk, rst_n, output wire[7:0] out ); wire enabl...